com.gsdstr.wallpaper.blob.GameScreen.java Source code

Introduction

Here is the source code for com.gsdstr.wallpaper.blob.GameScreen.java

Source

/*******************************************************************************
 * Copyright 2011 See AUTHORS file.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

package com.gsdstr.wallpaper.blob;

import com.badlogic.gdx.Game;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Application.ApplicationType;
import com.badlogic.gdx.Input.Keys;
import com.badlogic.gdx.Screen;
import com.badlogic.gdx.graphics.GL10;
import com.badlogic.gdx.graphics.GLCommon;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.math.Vector3;

public class GameScreen implements Screen {
    static final int GAME_READY = 0;
    static final int GAME_RUNNING = 1;

    Game game;

    int state;
    Vector3 touchPoint;
    SpriteBatch batcher;
    World world;
    WorldRenderer renderer;

    protected float deskOffset = 0.5f;

    public GameScreen(Game game, Assets assets) {
        this.game = game;

        state = GAME_RUNNING;
        touchPoint = new Vector3();
        batcher = new SpriteBatch();
        world = new World();
        renderer = new WorldRenderer(batcher, world, assets);
    }

    public void update(float deltaTime) {
        if (deltaTime > 0.1f)
            deltaTime = 0.1f;

        switch (state) {
        case GAME_READY:
            updateReady();
            break;
        case GAME_RUNNING:
            updateRunning(deltaTime);
            break;
        default:
            break;
        }

    }

    private void updateReady() {
        if (Gdx.input.justTouched()) {
            state = GAME_RUNNING;
        }
    }

    private void updateRunning(float deltaTime) {
        ApplicationType appType = Gdx.app.getType();
        // should work also with Gdx.input.isPeripheralAvailable(Peripheral.Accelerometer)
        if (appType == ApplicationType.Android || appType == ApplicationType.iOS) {
            world.update(deltaTime, 0);
        } else {
            float accel = 0;
            if (Gdx.input.isKeyPressed(Keys.DPAD_LEFT)) {
                deskOffset -= 0.1f;
                if (deskOffset < 0)
                    deskOffset = 0;

            }
            if (Gdx.input.isKeyPressed(Keys.DPAD_RIGHT)) {
                deskOffset += 0.1f;
                if (deskOffset > 1)
                    deskOffset = 1;

            }
            offsetChange(deskOffset, 1f);
            world.update(deltaTime, accel);
        }
    }

    public void draw(float deltaTime) {
        switch (state) {
        case GAME_READY:
            //presentReady();
            break;
        case GAME_RUNNING:
            Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
            renderer.render();
            break;
        }
    }

    @Override
    public void render(float delta) {
        update(delta);
        draw(delta);
    }

    @Override
    public void resize(int width, int height) {
        renderer.resize(width, height);
    }

    @Override
    public void show() {
        if (state == GAME_READY) {
            state = GAME_RUNNING;
            draw(0);
        }
    }

    @Override
    public void hide() {
        if (state == GAME_RUNNING)
            state = GAME_READY;
    }

    @Override
    public void pause() {
        if (state == GAME_RUNNING)
            state = GAME_READY;
    }

    @Override
    public void resume() {
        if (state == GAME_READY) {
            state = GAME_RUNNING;
            draw(0);
        }
    }

    @Override
    public void dispose() {
    }

    protected float lastOffset = Float.MIN_VALUE;

    public void offsetChange(float xOffset, float yOffset) {
        if (lastOffset == Float.MIN_VALUE) {
            lastOffset = xOffset;
            return;
        }
        world.offset(xOffset);
        renderer.calc();
        lastOffset = xOffset;
    }
}